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Updated: May 29, 2026

An Adapted Optical Density-Based Microplate Assay for Characterizing Actinobacteriophage Infection
Published on: June 30, 2023
Prevention of Gordonia and Nocardia stabilized foam formation by using bacteriophage GTE7
Steve Petrovski1, Robert J Seviour, Daniel Tillett
1Biotechnology Research Centre, La Trobe Institute for Molecular Sciences, La Trobe University, Bendigo, Victoria 3552, Australia.
Abstract:
Most activated sludge treatment plants suffer from the presence of foams on the surfaces of their aeration reactors. These are often stabilized by hydrophobic mycolic acid-synthesizing actinobacterial species. A polyvalent Siphoviridae phage, GTE7, which lysed several Gordonia and Nocardia species, is described here. Its genome has a modular structure similar to that described for Rhodococcus phage ReqiDocB7. In laboratory-scale experiments, we showed that GTE7 prevents stabilization of foams by these Gordonia and Nocardia species.
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